Elastic Contact Holder Structure for Stable Contactor Assembly
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Solution Overview
Problem
The existing auxiliary contact modules in AC contactors suffer from poor elasticity in the protrusion, leading to significant deformation and rebound forces during assembly, which can cause the contact bridge to topple sideways and result in circuit abnormalities.
Innovation Solution
A contact holder with an elastically deformable linkage member and a corresponding groove on the holder body, allowing the linkage member to retract and deform inward when subjected to mounting pressure, preventing deformation of the holder body and maintaining structural stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the protrusion is rigidly connected to the contact holder, then the auxiliary contact module can be fastened to the contactor, but the contact holder undergoes significant deformation and generates rebound force causing contact bridge to topple
Solution Approach 1:
The protrusion is designed with a flexible structure that can bend and deform elastically during assembly, allowing it to absorb mounting pressure without causing the contact holder to deform significantly. This flexible design prevents the rebound force that would otherwise cause the contact bridge to topple, while still maintaining sufficient fastening strength.
Solution Approach 2:
The protrusion's structural parameters are optimized to provide appropriate flexibility - it has sufficient rigidity to maintain fastening strength but enough elasticity to deform under mounting pressure and return to its original position, preventing contact bridge toppling while ensuring stable connection.
2Stability of the object's composition
If the protrusion is made more elastic to prevent holder deformation, then structural stability improves, but fastening capability may be reduced
Solution Approach 1:
The protrusion's material and geometric parameters are carefully selected to achieve optimal balance between elasticity and strength. The design ensures the protrusion can deform elastically to protect the contact holder from deformation while maintaining sufficient fastening capability through controlled elastic recovery.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The elastically deformable linkage member ensures stable assembly by minimizing holder body deformation, preventing the contact bridge from toppling and enhancing the structural integrity of the auxiliary contact module.
Implementation Method 1
the elastic connecting piece corresponds to the groove; and the linkage protrusion is disposed at the suspended end of the elastic connecting piece... In case that the linkage member is subjected to the mounting pressure, the linkage protrusion is driven to retract in the direction towards the interior of the groove of the holder body by bending deformation of the elastic connecting piece under force
Data Source
AI summary
A contact holder applied to an auxiliary contact module of a contactor includes a holder body and a linkage member on the holder body. The holder body is provided with a groove corresponding to the linkage member, and the linkage member is of an elastically deformable structure, to allow the linkage member to retract and deform in a direction towards an interior of the groove when subjected to mounting pressure.